Accu-scope Microscope 4x NIS Plan achromat objective, N.A. 0.10, W.D. 30mm

Specifications 4x NIS Plan Achromat objective N.A. 0.10 Working distance 30mm Provides a flat field of view Infinity corrected Corrected for No. 1 ½ coverglass M25 threads Designed for EXC-500 series microscopes Compatible with Nikon E200, E400, E600, Ci, 50/55i Shipping size 9x7x5 inches Shipping weight 1lb This microscope objective is compatible with Nikon E200, E400, E600, CI, 50i/55i and 80i microscopes.  Although it will not be 100% parfocal